Upgrades & Accessories

The Frederiksen ratchet block is legendary. It is light and very strong for optimal performance. The ratchet has a small distance between each click to enhance control of sheets. This is the ideal Laser mainsheet block. From Ronstan: The patented...

This fast pin allows for quick detachment of 3/16" fittings, even under pressure. This pin is commonly used on ILCA vang lower base units (Harken and Ronstan) to attach the cunningham line, replacing the standard clevis pin and rig for quick rigging...

Perfect for spinnaker sheet turning blocks. This Ronstan block is free wheeling at low wind velocity. As the wind velocity increases the pressure on the sheave automatically engages the ratchet. The sheet rope is never trapped in the sheave and can slide...

ILCA High Load Vang Block with Key from Ronstan Upgrade your ILCA vang with this new high load upper vang block from the hardware experts at Ronstan. Introduced as part of the Series 30 Block collection, the RF34108HLK is a low friction, low profile...

ILCA High Load Vang Block from Ronstan Upgrade your ILCA vang with this new high load upper vang block from the hardware experts at Ronstan. Introduced as part of the Series 30 Block collection, the RF34108HL is a low friction, low profile vang...

ILCA High Load Vang Becket Block with Key from Ronstan Upgrade your ILCA vang with this new high load upper vang block from the hardware experts at Ronstan. Introduced as part of the Series 30 Block collection, the RF34118HLK a low friction, low profile...

Class approved ILCA lower vang unit from Ronstan.  Lowest friction ILCA vang unit available. HHL sheave for the high load primary sheave. Easy cleating and releasing from any angle. Pivot point close to clevis pin attachment to minimize...

Quickly and securely attach your outhaul to the clew of the sail. This Clew Shackle with Block assembly includes a 20mm Ronstan ball bearing block and captive-locking shackle ensure smooth action and no unwanted releases! Lowers friction Speeds up...